- DApp stands for Decentralized Application
- DAPP stands for Dermatite par Allergie aux Piqûres de Puces (French: Dermatitis by Allergy to Flea Bites)
- DAPP stands for Development Aid from People to People
- DAPP stands for Division Académique des Pensions et des Prestations (French: Academic Division of Pensions and Benefits)
- DAPP stands for Departamento de Avaliação Prospectiva e Planeamento (Ministério da Educação, Portugal)
- DAPP stands for Dimensional Assessment of Personality Pathology
- DAPP stands for Data Acquisition and Processing Program (later DMSP)
- DAPP stands for Distemper, Adenovirus, Parainfluenza, Parvovirus (veterinary medicine)
- DAPP stands for Defense Acquisition Pilot Program
- DAPP stands for Dual A Posterior Probability
- DAPP stands for Applied Dose
DAPP